Re: [Twisted-Python] Question about PB and multicast

Thanks Eric. I was figuring it was something that I needed to write, but I was hoping there was some hidden feature of Twisted or PB I didn't know about. Peace, Chaz. Eric Mangold wrote:

On Wed, 17 May 2006 21:57:39 +1000, Chaz. wrote:

...

I am building an application that has tens of thousands of clients. There are times when I need to talk to quite a few of the clients using PB.

When I have to talk to a single (or a few) clients via PB I do the normal thing - issue multiple calls. In the cases where I have to talk to quite a few clients I had thought of changing the object I am sending to include the names of the machines I am interested in talking to. I would then send it via multicast using PB. I know this would require some changes on the PB side, but I am wondering if anyone sees a problem doing this?

Peace, Chaz.

PB connections were only ever designed to operate between two peers. It's designed to run over a reliable stream protocol, e.g. TCP.

TCP doesn't work over Multicast (it doesn't make any sense, if you think about it). If you want to use Multicast, I think you'll pretty much have to write your own thing using UDP.

-Eric